Over the weekend, E! News reported that George Clooney and wife Amal spent the Fourth of July holiday at their private Italian residence near Lako Como with a number of guests, including Julia Roberts and husband Danny Moder.

And turns out, it was a particularly special occasion for the 47-year-old Oscar winner and her 46-year-old hubby, who also happened to be celebrating their 13th wedding anniversary, and E! News has all the details with regards to how the two spent their special day.

A source tells us that Julia and her husband spent three days with George and Amal before leaving the Lake Como property this morning. We're told the couple, along with their three children, twins Phinnaeus and Hazel, 10, and Henry, 8, took a motorized dinghy out on the water on Friday.

"It was so lovely, a real family outing," an eyewitness said. "She looked so taken with her daughter, she held her in her arms on the boat.

"Moder meanwhile was driving," the source continued, adding, "And the boys were there, happy as they could possibly be. It was a picture of serenity, family moments."

While Clooney and Roberts have been close for sometime, it was only recently that the August: Osage County star finally had the chance to meet the actor's stunning wife of about 10 months.

"We've been really good friends for a really long time and I just adore her," Clooney told E! News of Roberts in May at the Disneyland premiere of his sci-fi adventure Tomorrowland. "She and Amal and I went out to dinner the other night. It was so much fun to have her meet my wife and have both of them be such good friends and hit it off so well."

Your information may be shared with other NBCUniversal businesses and used to better tailor our services and advertising to you. For more details about how we use your information, see our Privacy Policy. If you are located outside of the U.S., your information may be transferred to, processed and used in the U.S.